渤海海域渤中凹陷渤中19-6深层潜山凝析气藏的充注成藏过程

doi:10.11743/ogg20200501

Abstract

Abstract:

The sources' charging and possible accumulation processes of hydrocarbon in the BZ 19-6 buried hill reservoirs were investigated based on analyses of the geochemistry of condensate samples, the hydrocarbon generation history of source rocks in neighboring sags, and the petrology, homogenization temperature and GOI values (frequency of quartz grains containing oil-bearing inclusions) of fluid inclusions.The results reveal that the gas condensate in the BZ 19-6 reservoirs is high in thermal maturity and its corresponding source rocks have R_o values approximately 1.3%.The light hydrocarbon and carbon isotopic compositions as well as biomarkers all point to oil-prone source rocks in the Shahejie Formation (Es³ and Es¹).Most hydrocarbon inclusions are distributed in the micro-cracks of quartz, with only a few scattering at the overgrown edge.Liquid hydrocarbon inclusions have yellow-green and blue-white fluorescent, with a GOI value of up to 80%, indicating an almost fully-charged reservoir.The gas condensate reservoirs in the Bozhong Sag are characterized by nearby source rocks with continuous charging of early oil and late gas.The oil charging concentrated during the deposition of the Lower Minghuazhen Formation (12-5.1 Ma), and the large-scale gas charging occurred in the late stage of the Lower Minghuazhen Formation or even later (5.1-0 Ma).Despite an obvious vertical migration of oil and gas during the Neotectonic Movement, the rapid maturation of source rocks and strong near-source charging are considered to be a more important physical foundation for the dynamic hydrocarbon enrichment in deep buried hills of activation zones.

Key words: source of condensate oil and gas, charging history, BZ 19-6 buried hill, Bohai Sea, Bohai Bay Basin

CLC Number:

TE122.3

Yong'an Xue, Qi Wang, Chengmin Niu, Quanyun Miao, Mengxing Liu, Jie Yin. Hydrocarbon charging and accumulation of BZ 19-6 gas condensate field in deep buried hills of Bozhong Depression, Bohai Sea[J]. Oil & Gas Geology, 2020, 41(5): 891-902.

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References 37

1	施和生, 王清斌, 王军, 等. 渤中凹陷深层渤中19-6构造大型凝析气田的发现及勘探意义[J]. 中国石油勘探, 2019, 24 (1): 36- 45.
	Shi Hesheng , Wang Qingbin , Wang Jun , et al. Discovery and exploration significance of large condensate gas fields in BZ19-6 structure in deep Bozhong sag[J]. China Petroleum Exploration, 2019, 24 (1): 36- 45.
2	蒋有录. 渤海湾盆地天然气聚集带特征及形成条件[J]. 石油大学学报(自然科学版), 1999, 23 (5): 9- 13.
	Jiang Youlu . Geological characteristics and formation conditions of the natural gas accumulation belts in Bohai Bay Basin[J]. Journal of the University of Petroleum, China (Edition of Natural Sciences), 1999, 23 (5): 9- 13.
3	魏兆亮, 刘全稳, 程有义, 等. 渤海湾盆地天然气聚集差异性探讨[J]. 天然气工业, 2006, 26 (3): 38- 40, 159.
	Wei Zhaoliang , Liu Quanwen , Cheng Youyi , et al. A discussion on differential gas accumulation in Bohai Bay Basin[J]. Natural Gas Industry, 2006, 26 (3): 38- 40+159.
4	朱伟林, 葛建党. 渤海海域天然气勘探前景分析[J]. 石油学报, 2001, 22 (2): 8- 13.
	Zhu Weilin , Ge Jiandang . Gas exploration potential in offshore Bohai Bay Basin[J]. Acta Petrolei Sinica, 2001, 22 (2): 8- 13.
5	葛建党, 朱伟林. 从渤海湾盆地海陆对比看渤海海域天然气勘探前景[J]. 中国海上油气地质, 2001, 15 (2): 6- 11.
	Ge Jiandang , Zhu Weilin . An analysis of offshore gas exploration potential in terms of comparison between offshore and onshore areas in Bohai Bay Basin[J]. China Offshore Oil and Gas, 2001, 15 (2): 6- 11.
6	蒋有录. 渤海湾盆地盖层对天然气富集的影响初探[J]. 地质论评, 1999, 45 (1): 26- 31.
	Jiang Youlu . The influence of cap rocks on the accumulation and distribution of natural gas in the Bohai Bay Basin[J]. Geological Review, 1991, 45 (1): 26- 31.
7	邹华耀, 周心怀, 鲍晓欢, 等. 渤海海域古近系、新近系原油富集/贫化控制因素与成藏模式[J]. 石油学报, 2010, 31 (6): 885- 893, 899.
	Zou Huayao , Zhou Xinhuai , Bao Xiaohuan , et al. Controlling factors and models for hydrocarbon enrichment/depletion in Paleogene and Neogene, Bohai sea[J]. Acta Petrolei Sinica, 2010, 31 (6): 885- 893, 899.
8	滕长宇, 邹华耀, 郝芳, 等. 渤海海域天然气保存条件与分布特征[J]. 天然气地球科学, 2015, 26 (1): 71- 80.
	Teng Changyu , Zou Huayo , Hao Fang , et al. Preservation condition and occurrence of the gas pools in the Bohai Bay area[J]. Natural Gas Geoscience, 2015, 26 (1): 71- 80.
9	赵庆波, 杨金凤. 渤海湾盆地气藏盖层特征[J]. 天然气地球科学, 1993, 4 (5): 1- 10.
	Zhao Qingbo , Yang Jinfeng . Caprock characteristics of gas reservoirs in Bohai Bay Basin[J]. Natural Gas Geoscience, 1993, 4 (5): 1- 10.
10	秦胜飞, 戴金星, 赵靖舟, 等. 新构造运动对中国天然气成藏的控制作用[J]. 地质论评, 2006, 5 (1): 93- 99.
	Qin Shengfei , Dai Jinxing , Zhao Jingzhou , et al. Control of the Neotectonics in China on natural gas accumulation[J]. Geological Review, 2006, 5 (1): 93- 99.
11	Hao F , Zhou X , Zou H , et al. Petroleum charging and leakage in the BZ25-1 field, Bohai Bay basin[J]. Journal of Earth Science, 2012, 23 (3): 253- 267. doi: 10.1007/s12583-012-0251-8
12	周心怀, 牛成民, 滕长宇. 环渤中地区新构造运动期断裂活动与油气成藏关系[J]. 石油与天然气地质, 2009, 30 (4): 469- 482.
	Zhou Xinhuai , Niu Chengmin , Teng Changyu . Relationship between faulting and hydrocarbon pooling during the Neotectonics movement around the central Bohai Bay[J]. Oil & Gas Geology, 2009, 30 (4): 469- 482.
13	王奇, 邹华耀, 周心怀, 等. 渤海海域烃源岩的生气潜力与天然气成因分析[J]. 高校地质学报, 2017, 23 (2): 304- 314.
	Wang Qi , Zou Huayao , Zhou Xinhuai , et al. Gas potential of source rocks and origin of natural gases in Bohai Sea[J]. Geological Journal of China Universities, 2017, 23 (2): 304- 314.
14	徐长贵, 于海波, 王军, 等. 渤海海域渤中19-6大型凝析气田形成条件与成藏特征[J]. 石油勘探与开发, 2019, 46 (1): 25- 38.
	Xu Changgui , Yu Haibo , Wang Jun , et al. Formation conditions and accumulation characteristics of Bozhong 19-6 large condensate gas field in offshore Bohai Bay Basin[J]. Petroleum Exploration and Development, 2019, 46 (1): 25- 38.
15	Hao F , Zhou X H , Zhu Y M , et al. Lacustrine source rock deposition in response to co-evolution of environments and organisms controlled by tectonic subsidence and climate, Bohai Bay Basin, China[J]. Organic Geochemistry, 2011, 42 (4): 323- 339. doi: 10.1016/j.orggeochem.2011.01.010
16	Hao F , Zhang Z , Zou H , et al. Origin and mechanism of the formation of the low-oil-saturation Moxizhuang field, Junggar Basin, China:Implication for petroleum exploration in basins having complex histories[J]. AAPG Bulletin, 2011, 95 (6): 983- 1008. doi: 10.1306/11191010114
17	Hao F , Zhou X H , Zhu Y M , et al. Charging of oil fields surrounding the Shaleitian uplift from multiple source rock intervals and generative kitchens, Bohai Bay basin, China[J]. Marine and Petroleum Geology, 2010, 27 (9): 1910- 1926. doi: 10.1016/j.marpetgeo.2010.07.005
18	Wilhelms A , Larter S . Shaken but not always stirred.Impact of petroleum charge mixing on reservoir geochemistry[J]. Geological Society, 2004, 237, 27- 35. doi: 10.1144/GSL.SP.2004.237.01.03
19	Justwan H , Dahl B , Isaksen G H . Geochemical characterisation and genetic origin of oils and condensates in the South Viking Graben, Norway[J]. Marine and Petroleum Geology, 2006, 23 (2): 213- 239. doi: 10.1016/j.marpetgeo.2005.07.003
20	Radke M , Welte D H , Willsch H . Distribution of alkylated aromatic hydrocarbons and dibenzothiophenes in rocks of the Upper Rhine Graben[J]. Chemical Geology, 1991, 93 (3): 325- 341.
21	Budzinski H , Garrigues P , Connan J , et al. Alkylated phenanthrene distributions as maturity and origin indicators in crude oils and rock extracts[J]. Geochimica Et Cosmochimica Acta, 1995, 59 (10): 2043- 2056. doi: 10.1016/0016-7037(95)00125-5
22	胡惕麟, 戈葆雄, 张义纲, 等. 源岩吸附烃和天然气轻烃指纹参数的开发和应用[J]. 石油实验地质, 1990, 12 (4): 375- 394, 450.
	Hu Tilin , Ge Baoxiong , Zhang Yigang , et al. The development and application of fingerprint parameters for hydrocarbons absorbed by source rocks and light hydrocarbons in natural gas[J]. Petroleum Geology and Experiment, 1990, 12 (4): 375- 394, 450.
23	胡安文, 牛成民, 王德英, 等. 渤海湾盆地渤中凹陷渤中19-6构造凝析油气特征与形成机制[J]. 石油学报, 2020, 41 (4): 403- 411.
	Hu Anwen , Niu Chengmin , Wang Deying , et al. The characteristics and formation mechanism of condensate oil and gas in Bozhong 19-6 structure, Bozhong sag, Bohai Bay Basin[J]. Acta Petrolei Sinica, 2020, 41 (4): 403- 411.
24	Wang Q , Hao F , Xu C , et al. Geochemical characterization of QHD29 oils on the eastern margin of Shijiutuo uplift, Bohai Sea, China:Insights from biomarker and stable carbon isotope analysis[J]. Marine and Petroleum Geology, 2015, 64, 266- 275. doi: 10.1016/j.marpetgeo.2015.03.010
25	王奇, 郝芳, 徐长贵, 等. 渤海海域沙西北地区潜山油源及成藏特征[J]. 石油与天然气地质, 2018, 39 (4): 676- 684.
	Wang Q , Hao F , Xu C , et al. Origin and accumulation characterization of petroleum in buried hill reservoirs in Shaxibei area, Bohai Sea[J]. Oil & Gas Geology, 2018, 39 (4): 676- 684.
26	Wang Q , Hao F , Xu C , et al. Paleolimnological environments and the formation of high quality source rocks in the Bohai Bay Basin:An integrated geochemical study of biomarkers, stable carbon and oxygen isotopes, and trace elements[J]. Journal of Petroleum Science and Engineering, 2020, 195, 107753. doi: 10.1016/j.petrol.2020.107753
27	戴金星, 夏新宇, 秦胜飞, 等. 中国有机烷烃气碳同位素系列倒转的成因[J]. 石油与天然气地质, 2003, 24 (2): 1- 6.
	Dai Jinxing , Xia Xinyu , Qin Shengfei , et al. Cause of partly reversed orders of δ¹³C in biogenic alkane gas in China[J]. Oil & Gas Geology, 2003, 24 (1): 1- 6.
28	李伟, 喻梓靓, 王雪柯, 等. 中国含油气盆地深层、超深层超压盖层成因及其与超大型气田的关系[J]. 天然气工业, 2020, 40 (2): 11- 20.
	Li Wei , Yu Ziliang , Wang Xueke , et al. Formation mechanism of deep and ultra-deep overpressure cap rocks and their relationships with super large gas fields in the petroliferous basins of China[J]. Natural Gas Industry, 2020, 40 (2): 11- 20.
29	刘超英, 闫相宾, 徐旭辉, 等. 应用流体包裹体研究惠民凹陷南斜坡油气充注史[J]. 石油与天然气地质, 2008, 29 (4): 507- 510+542.
	Liu Chaoying , Yan Xiangbin , Xu Xuhui , et al. Application of fluid inclusion to the study of hydrocarbon charge history of the south slope in the Huimin Sag[J]. Oil & Gas Geology, 2008, 29 (4): 507- 510+542.
30	金晓辉, 闫相宾, 孙东胜, 等. 长岭断陷深层储层包裹体特征与油气成藏过程[J]. 石油与天然气地质, 2014, 35 (5): 609- 613.
	Jin Xiaohui , Yan Xiangbin , Sun Dongsheng , et al. Fluid inclusion characteristics and hydrocarbon accumulation process of deep reservoir in Changling rift, Songliao Basin[J]. Oil & Gas Geology, 2014, 35 (5): 609- 613.
31	姜福杰, 姜振学, 庞雄奇, 等. 含油包裹体丰度指数确定油气运聚范围及应用[J]. 西南石油学院学报, 2006, 28 (5): 15- 18.
	Jiang Fujie , Jiang Zhenxue , Pang Xiongqi , et al. Method of determination oil and gas migration by grain with oil inclusion and its application[J]. Journal of Southwest Petroleum Institute, 2006, 28 (5): 15- 18.
32	Lisk M , O'Brien G W , Eadington P J . Quantitative evaluation of the oil-leg potential in the Oliver gas field, Timor Sea, Australia[J]. AAPG Bulletin, 2002, 86 (9): 1531- 1542.
33	田金强.渤海湾地区大中型油气田成藏机理与模式[D].北京:中国石油大学(北京), 2011.
	Tian Jinqiang.Mechanism and model of hydrocarbon accumulation of large and medium-sized oil and gas fields in Bohai Bay Area[D].Beijing: China University of Petroleum (Beijing), 2011.
34	戴金星, 宋岩, 张厚福. 中国大中型气田形成的主要控制因素[J]. 中国科学(D辑:地球科学), 1996, 26 (6): 481- 487.
	Dai Jinxing , Song Yan , Zhang Houfu . The main controlling factors for the formation of medium-giant gas fields in China[J]. Science in China (Series D), 1997, 40 (1): 1- 10.
35	邹华耀, 龚再升, 滕长宇, 等. 渤中坳陷新构造运动断裂活动带PL19-3大型油田晚期快速成藏[J]. 中国科学:地球科学, 2011, 41 (4): 482- 492.
	Zou Huayao , Gong Zaisheg , Teng Changyu , et al. Late-stage rapid accumulation of the PL19-3 giant oilfield in an active fault zone du-ring Neotectonism in the Bozhong depression, Bohai Bay[J]. Science China:Earth Science, 2011, 54, 388- 398.
36	龚再升. 中国近海含油气盆地新构造运动与油气成藏[J]. 地球科学, 2004, 29 (5): 513- 517.
	Gong Zaisheng . Neotectonics and petroleum accumulation in offshore Chinese basins[J]. Earth Science-Journal of Chain University of Geosciences, 2004, 29 (5): 513- 517.
37	徐长贵, 杜晓峰, 刘晓健, 等. 渤海海域太古界深埋变质岩潜山优质储集层形成机制与油气勘探意义[J]. 石油与天然气地质, 2020, 41 (2): 235- 247.
	Xu Changgui , Du Xiaofeng , Liu Xiaojian , et al. Formation mechanism of high-quality deep buried-hill reservoir of Archaean metamorphic rocks and its significance in petroleum exploration in Bohai Sea area[J]. Oil & Gas Geology, 2020, 41 (2): 235- 247.

井号	层位	深度/m	密度/(g·cm^-3)	相对密度/° (API)	粘度/(mPa·s)	蜡含量/%	沥青质含量/%	胶质含量/%	硫含量/%
BZ19-6-A	E_1-2k	3 566.8~3 634	0.79	45.60	1.41	14.13	0.31	0.79	0.02
BZ19-6-A	E_1-2k	3 521.1	0.86	31.80	8.13	18.73	3.52	8.97	—
BZ19-6-A	Ar	4 043.4~4 142	0.79	46.04	1.24	11.80	0.15	0.84	0.02
BZ19-6-B	Ar	3 873.7~3 923.5	0.80	44.11	1.65	14.64	0.15	0.28	0.13
BZ19-6-B	Ar	3 879~3 998.66	0.81	42.34	2.29	15.82	0.20	1.34	0.02
BZ19-6-C	E_1-2k	4 079.18	0.79	47.39	2.06	7.32	0.02	0.57	0.01
BZ19-6-D	Ar	4 411~4 499.80	0.80	44.71	1.72	17.62	0.16	0.69	0.01
BZ19-6-E	E_1-2k	3 500~3 566	0.79	46.26	—	10.11	0.72	0.91	0.02
BZ19-6-E	E_1-2k	3 901.5	0.82	40.85	2.50	20.52	0.26	2.30	0.04

大类		烃包裹体				含烃包裹体		非烃包裹体
亚类		黄绿色荧光烃包裹体	蓝白色荧光烃包裹体	甲烷气烃包裹体		含甲烷气盐水包裹体		CO₂三相包裹体	CO₂气包裹体	盐水包裹体

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Hydrocarbon charging and accumulation of BZ 19-6 gas condensate field in deep buried hills of Bozhong Depression, Bohai Sea

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